Puncture-mending device.



H. T. STEPHENS.

PUNGTURE MBNDING DEVICE.

APPLICATION FILED 1330.19. 1912.

1 181345, Patented Mar.16,1915.

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HUGH TAYLOR STEPHENS, 0F CARMARTHEN, WALES.

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Specification of Letters Patent.

pairing pneumatic tires and the like relates to patches adapted to mendthe puncture both on the outside and inside and has for this object animproved construction of patch which will facilitate the application ofthepatch both to the outside and inside at the same time and cause thetwo parts" to be held in position tightly-against the sides of the tubeor cover as thecase may be.

Now according to this invention the patch is provided with an outer.part or cup that projects upward from the connecting stem so that whenthe bottom part or head is in position on the inside of the tube the cuppart remains on the outside ready to be stuck down. This cup part. is somoldedwhere it joinsthe stem that when it is pressed down it tends toremain in that position and consequently when in use to draw the head upagainst the inside of the tube and thus prevent the air getting past theV head as happens with others of somewhat The head is provided on. itsouter surface with aprojection or-tem plet of suitable thickness andcontour 1 similar device.

which when moistened and pressed; against the tube leaves'a mark to becut-out to receive the stem. The patch maybe treated with a suitableadhesive then inserted through the hole and drawn back into position bya pair of pliers when the outside.

Patented Mr. 6,1915.

Application filed December 19, 1912. Serial No. 737,597.

part is now pressed down'and the tire is ready for inflation. When usedfor outer covers the head may preferably be on the outside of the samein which case when the cup is flattened out on the inside the head will'be pulled down on the outside. strong layer of canvas is now stuck overthe hollow cupinside the cover to take the pressure of the air off thedamaged part.

Figure 1. shows one of the patches or studs on position in the hole.Fig. 2. shows one of, the patches or studs in its closed or protectiveposition. Fig. 3. shows one of the patches or, studs in section.

Similar letters refer to similar parts throughout the several drawings.

' In Fig. l A represents the, cup shown outside the tube and not yetturned over. In Fig. 2 A represents the cup turned down on to the tube Crepresents the head of the stud and E is the tube in section while thestud itself is shown in elevation. Fig. 3 is a section of the stud Abeing the-cup B be ing the'stem G the head and D the templet.

I am aware that prior to my.invention other devices have been devisedfor a similar purpose. I therefore do not claim such a combinationbroadly; but

I' claim:

A- tire repair stud comprising a ste'm an inverted truncated cone shapedcup on one end of said stem, and a disk upon the other end of said stem,said cup being adapted to.

be pressed down to clamp the tire against said fdisk.

HUGH TAYLOR STEPHENS. -Witnesses: v

O. J. WORTH, 1 CARL R. LooP.

